A U.S. Air Force Airman assigned to the 48th Aircraft Maintenance Squadron conducts routine post-flight checks on an F-15C Eagle after arrival at Amari Air Base, Estonia, in support of Exercise Baltic Trident, March 15, 2021. Incorporating Agile Combat Employment concepts into exercises like Baltic Trident increases lethality and enhances interoperability with NATO allies and partner nations, ensuring the ability to counter military aggression and coercion by sharing responsibilities for common defense. (U.S. Air Force photo by Airman 1st Class Jessi Monte)